CAMBARUS. 5 
Tn the next number of the American Naturalist, Aug., 1872 (Vol. VI. p. 494), Hagen 
doubts the specific difference of the two cave forms, and opposes the establishment of a 
new genus based on the rudimentary condition of the eyes. 
1872. Ina memoir “ Ueber Cubanische Crustaceen” (Arch. f. Naturgesch., XXXVIIT. 
Jahrg., Bd. I. pp. 77-147), E. vy. Martens describes Cambarus Cubensis Erichs. from Cuba, 
and Cambarus Montezume, var. noy. tridens, from Mexico. Short diagnoses of C. Cubensis 
Erichs., C. Wiegmanni Evichs., C. Mexicanus Erichs., C. Aztecus Sauss., and C. Montezume 
Sauss., are added. Concerning the identity of C. Cubensis Sauss. and C. consobrinus 
Sauss., Von Martens is doubtful; but he thinks it probable, from specimens sent to the 
Berlin Museum by Dr. Gundlach, that there is a second Cuban Cambarus agreeing with 
C. Cubensis in the shape of the rostrum, but differing from it in the sexual appendages. 
1873. Ina paper “On the Cave Fauna of Indiana” (Fifth Ann. Rep. Peabody Acad. 
Sci., Salem, pp. 93-97), A-S. Packard, Jr. communicates the results of a comparison of 
the blind Cambari from the Mammoth and Wyandotte Caves. He concludes that they 
are one and the same species, and doubts, with Hagen, the validity of a genus based on 
the atrophy of the visual organs. 
1873. Dr. Charles C. Abbott prints, in the American Naturalist, Vol. VIL. pp. 80-84, 
“Notes on the Habits of certain Crawfish.” The observations were made at Trenton, 
N. J., upon three species, —“C. acutus Gir.” (C. Blandingit), C. affinis, aud C. Bartonii. 
Specimens of all three of these species, received from Dr. Abbott, are in the Museum of 
the Peabody Academy of Science, Salem, Mass. 
1874. Prof. S. I. Smith, in a paper on the Crustacea of the Fresh Waters of the 
United States, in U. 8. Fish Commissioner’s Report for 1872 and 1875, gives a list of 
the Astacidee of the Northern United States east of the Mississippi River (pp. 637-659). 
This list is compiled from Hagen’s Monograph, but adds new localities for C. propin- 
quus and C. Bartonii. Orconectes inermis Cope is considered a synonym of Cambarus 
pellucidus. 
1874. In “ Remarks on the Mammoth Cave and some of its Animals” (Bull. Essex 
Inst., Vol. VI. pp. 191-200), Mr. F. W. Putnam speaks of the association of C. pellucidus 
and C. Bartonti in the Mammoth Cave of Kentucky. The occurrence of C. pellucidus 
near the entrance of another cave several miles from Mammoth Cave is noted, and obser- 
vations are added on the color of cave specimens of C. pellucidus and C. Bartonii. 
1875. Substantially the same observations are again printed by Mr. Putnam in Proe. 
Boston Soe. Nat. Hist., Vol. XVII. pp. 222-225. 
1875. “On some of the Habits of the Blind Crawfish, Cambarus pellucidus, and the 
Reproduction of lost Parts.” By F.W. Putnam. Proe. Boston Sec. Nat. Hist., Vol. XVILT. 
pp. 16-19. In this communication Mr. Putnam treats of the habits, coloration, exuvi- 
ation, and restoration of lost parts in C. pellucidus and C. Bartonii. The observations 
were made upon living specimens, brought to Cambridge, Mass., from the Mammoth Cave. 
The specimens are now preserved in the Museum of Comparative Zoology. One of the 
specimens of C. pellucidus lived upwards of nine months in confinement, exposed to the 
full glare of day. : 
1875. In an essay “On the Antiquity of the Caverns and Cavern Life of the Ohio 
Valley” (Mem. Boston Soc. Nat. Hist., Vol. II. p. 362; also in Mem. Ky. Geolog. Surv., 
Vol. I. Part I., 1876), Professor N. S. Shaler speculates on the origin of the blind 
Cambarus pellucidus of the Mammoth Cave. (See p. 41.) 
1875. Brocchi, in his “Recherches sur les Organes Génitaux Males des Crustacés 
Décapodes” (Ann. Sci. Nat., 6° Série, Zool. et Paléontol., Tom. II. Art. 2), figures the first 
